What kind of paper should I use for my wedding invitations?

Hi, Bees! This is my first question on here, though I’ve been perusing this website, and reading all of your very helpful suggestions for months now!

I am DIY’ing my wedding invitations. I printed some samples on regular cardstock, but it looks kinda cheap and filmsy. I then decided to add a layer or cardstock to the back of the invitation to create a border effect, and to make the invitation stiffer (in other words, no so cheap). It’s an option…for now.

I’m sure many of you have one-layered invitations that look expensive…do you mind sharing what kind of paper you used, and whether it worked on your home printer? I just started researching linen cardstock…is this any good?